That would solve the issue, especially the idea of attacking the planet. I really like the idea of human characters who earn themselves a place next to a saiyans in power level. Would you be willing to entertain the idea of an alternate kaioken system that would allow some none saiyan characters to keep up with super saiyans?

We could explore the concepts like different 'types' of Super Saiyan and Kaioken, like how Vageta and Trunks had their 'Super Saiyan Super Vageta/Trunks' forms, where they got a big melee power boost in trade for a little speed.